Low Level Extraction Utility

  • Thread starter Thread starter Deforgel
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Deforgel

I have a Jaz Tape cartridge that I need to extract jpg's from. The problem is
I receive CRC (Cycllic Redundancy Check) Errors or file read errors when I try
to copy the files off the tape. I sent the tape away and they want over $1,000
to get the files off of it. They said a low level extraction would be
necessary. They were able to retrieve 92% of the files. I'm not able to spend
this kind of money--I now have the tape back. Does anyone know of a utility I
can use or a data recovery service that might be less expensive. Thanks.
 
I have a Jaz Tape cartridge that I need to extract jpg's from. The problem is
I receive CRC (Cycllic Redundancy Check) Errors or file read errors when I try
to copy the files off the tape. I sent the tape away and they want over $1,000
to get the files off of it. They said a low level extraction would be
necessary. They were able to retrieve 92% of the files. I'm not able to spend
this kind of money--I now have the tape back. Does anyone know of a utility I
can use or a data recovery service that might be less expensive. Thanks.
Click to expand...


Unless they are pics of a naked Britney Spears doing a naked Jessica
Simpson, I say get to enjoy that feeling when you realize your data is
gone bye bye.
 
yak said:
(e-mail address removed) says...


Unless they are pics of a naked Britney Spears doing a naked
Jessica Simpson, I say get to enjoy that feeling when you
realize your data is gone bye bye.
Click to expand...

This doesn't help your present problem, but this is a reason to
use ARJ for such backups. ARJ has the ability to add a recovery
module to cope with just such bad media problems. It is almost
ideal for backup purposes, and an excellent general purpose
compressor/decompressor in itself. I think it is arjsw.com. At
any rate it is free for personal use.

The process of calculating and adding the recovery syndrome is
fairly lengthy. Without that ARJ is not slow compared to zip
etc. For even greater compression you can use bzip2 and then
store the results (without further compression) via ARJ and the
recovery syndrome.

I am assuming Windoze/DOS etc. I don't believe ARJ is available
for unix. However it should run in a *ix Dos emulation box.
 
I am assuming Windoze/DOS etc. I don't believe ARJ is available
for unix. However it should run in a *ix Dos emulation box.
Click to expand...

Not sure about all *nix varients, but most of the BSD's (freebsd, netbsd,
openbsd, etc) offer a port or package..


Regards,
Chris
 
Thanks for the info. But it doesn't help with the files that have already gone
bad. If a company was able to pull off 92% of the files, I should be able to
it with some type of utility. Any other ideas?
 
Thanks for the info. But it doesn't help with the files that have already gone
bad. If a company was able to pull off 92% of the files, I should be able to
it with some type of utility. Any other ideas?
Click to expand...


First thing to try might be cleaning the head on the tape drive,
and pinch roller(s).
 
Deforgel said:
Thanks for the info. But it doesn't help with the files that have
already gone bad. If a company was able to pull off 92% of the
files, I should be able to it with some type of utility. Any
other ideas?
Click to expand...

Try to quote sufficient context that people know what it is about,
without needing to refer to older articles that may well not be
available.

I don't know what sort of system you are running, but if you know
something about the file setup, or the directory etc. is legible,
you could write a file copying program that just skips to the next
file on read error. It should also tell you the file names
involved. Under DOS (or a dosbox on windoze) xxcopy _might_ do
it. <http://xxcopy.com>
 
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